Buggy code:
public class RepositoryLoaderFunction implements SkyFunction { @ Nullable @ Override public SkyValue compute ( SkyKey skyKey , Environment env ) throws SkyFunctionException , InterruptedException { RepositoryName nameFromRule = ( ( RepositoryName ) ( skyKey . argument ( ) ) ) ; SkyKey repositoryKey = RepositoryDirectoryValue . key ( nameFromRule ) ; RepositoryDirectoryValue repository = ( ( RepositoryDirectoryValue ) ( env . getValue ( repositoryKey ) ) ) ; if ( repository == null ) { return null ; } SkyKey workspaceKey = WorkspaceFileValue . key ( RootedPath . toRootedPath ( repository . getPath ( ) , new PathFragment ( "WORKSPACE" ) ) ) ; WorkspaceFileValue workspacePackage = ( ( WorkspaceFileValue ) ( env . getValue ( workspaceKey ) ) ) ; if ( workspacePackage == null ) { return null ; } RepositoryName workspaceName ; try { String workspaceNameStr = workspacePackage . getPackage ( ) . getWorkspaceName ( ) ; workspaceName = ( workspaceNameStr . isEmpty ( ) ) ? RepositoryName . create ( "" ) : RepositoryName . create ( ( "@" + workspaceNameStr ) ) ; } catch ( LabelSyntaxException e ) { throw new IllegalStateException ( e ) ; } if ( ( ! ( workspaceName . isDefault ( ) ) ) && ( ! ( nameFromRule . equals ( workspaceName ) ) ) ) { Path workspacePath = repository . getPath ( ) . getRelative ( "WORKSPACE" ) ; <START_BUG> env . getListener ( ) . handle ( Event . warn ( Location . fromFile ( workspacePath ) , ( ( ( ( ( ( ( ( "Workspace<seq2seq4repair_space>name<seq2seq4repair_space>in<seq2seq4repair_space>" + workspacePath ) + "<seq2seq4repair_space>(" ) + workspaceName ) + ")<seq2seq4repair_space>does<seq2seq4repair_space>not<seq2seq4repair_space>match<seq2seq4repair_space>the<seq2seq4repair_space>" ) + "name<seq2seq4repair_space>given<seq2seq4repair_space>in<seq2seq4repair_space>the<seq2seq4repair_space>repository's<seq2seq4repair_space>definition<seq2seq4repair_space>(" ) + nameFromRule ) + ");<seq2seq4repair_space>this<seq2seq4repair_space>will<seq2seq4repair_space>" ) + "cause<seq2seq4repair_space>a<seq2seq4repair_space>build<seq2seq4repair_space>error<seq2seq4repair_space>in<seq2seq4repair_space>future<seq2seq4repair_space>versions." ) ) ) ; <END_BUG> } return new com . google . devtools . build . lib . skyframe . RepositoryValue ( nameFromRule , repository ) ; } @ Nullable @ Override public String extractTag ( SkyKey skyKey ) { } }

Fix:
env . getListener ( ) . handle ( Event . warn ( Location . fromFile ( workspacePath ) , ( ( ( ( ( ( ( ( "Workspace<seq2seq4repair_space>name<seq2seq4repair_space>in<seq2seq4repair_space>" + workspacePath ) + "<seq2seq4repair_space>(" ) + workspaceName ) + ")<seq2seq4repair_space>does<seq2seq4repair_space>not<seq2seq4repair_space>match<seq2seq4repair_space>the<seq2seq4repair_space>" ) + "name<seq2seq4repair_space>given<seq2seq4repair_space>in<seq2seq4repair_space>the<seq2seq4repair_space>repository's<seq2seq4repair_space>definition<seq2seq4repair_space>(" ) + nameFromRule ) + ");<seq2seq4repair_space>this<seq2seq4repair_space>will<seq2seq4repair_space>" ) + "cause<seq2seq4repair_space>a<seq2seq4repair_space>build<seq2seq4repair_space>error<seq2seq4repair_space>in<seq2seq4repair_space>future<seq2seq4repair_space>versions" ) ) ) ;